Sash-holding device.



PATENTED AUG. 7, 1906.

W. M. DUGKERK SASH HOLDING DEVICE. APPLICATION FILED DEC. 29. 1905.

1VILLIAM M. DUOKER, OF NEW YORK, N. Y.

SASH-HOLDING DEVICE.

Specification of Letters Patent.

Patented Aug. '7', 1906;

A li ati fil d December 29, 1905. Serial No. 293,786.

To (tZZ whom, it ntay concern.-

Be it known that I, WILLIAM M. DUCKER, a citizen of the United States, residing in the borough of Brooklyn, 111 the county of Kings, T in the city and State of New Iork, have 1n vented certain new and useful Improvements in Sash-Holdmg Devices, of which the following is a specification.

This invention relates to devices for holding or supporting sashes of windows and the object is to provide a simple and effective device of a durable character which will not be liable to get out or order.

The characteristic and novel features of the device will be hereinafter set forth, and carefully defined in the claims.

In the accompanying drawings, which illustrate an embodiment of the invention, Figure 1 is a perspective view of one of the devices detached. Fig. 2 is a front elevation thereof. Figs. 3 and 4 are views of the respective upper and lower ends thereof. Fig. 5 is a sectional elevation, on a smaller scale, showing the device in operative position on the sash. Fig. 6 is a view, partly in section, illustrating a form of the device which differs slightly from that of the principal views, but is the same in principle. Fig. 7 shows a slightlymodified construction of the wheel or rotative part of the device. Fig. 8 is a view of the device mounted eXteriorly on the sash.

Referring primarily to Figs. 1 to 5, 1 designates a frame or casing, preferably of metal and provided with apertured flanges or lips 2 for securing the casing in a mortise or recess. 3 is a movable plate mounted in the casing and backed by a spring or springs 4, which tend to keep said plate pressed out to the front of the casing. This plate 3 may be guided in or on the ends of the casing in any way desired; but, as herein shown, the casing has at one end a slot 5, engaged by a lug 6 on the end. of the plate 3, and at the other end the said plate is forked, and the lugs or branches 7 thereon embrace a narrowed portion of the end of the casing. Figs. 3 and 4 show the respective guiding features clearly. The lugs on the ends of the plate 3 form stops to limit the outward movement of the plate under the influence of the springs 4.

Mounted rotatively in the plate 3 is a friction-wheel 8, the journals on the latter finding hearings in slots 9, formed in marginal lugs on the plate. The wheel 8 carries, as shown in the principal views, two sets of teeth 10, and by the movement of the wheeljournals along the bearing-slots 9 the teeth 10 on the wheel may be moved into and out of engagement with detents 11. on the plate 8. These detents are simply rigid or unyielding integral parts of the plate 3. It is preferred to employ two like sets of teeth, one set at each side of the wheel, and two detents. In this case the teeth may be formed integrally with the wheel; but the construction shown in Fig. 7 may as well be used. In this latter the wheel 8 has a single set of teeth 10 at its middle and one detent 11 on the plate to engage the teeth. Where the construction is as shown in Fig. 7, it will be best to construct the teeth on a separate part and after embracing this part between the two sections of the wheel to solder or braze the parts to gether.

Fig. 5 shows the application of the invention to a windowas a car-window, for example. In this figure S designates the sash, F the window-frame, and B a bearing stile or strip in the frame between the partingbeads. The sash-holder, here shown in side elevation, is set in a mortise in the edge of the sash and secured by screws in the manner of a mortise-lock. The bearing of the periphery of the wheel 8 on the strip or stile B presses in the plate 3 and compresses the springs 4. These latter keep the wheel pressed strongly, but yieldingly, against the strip on the frame. The tendency of the sash to descend by its weight draws the detents 11 down into engagement with the teeth on the wheel, and this prevents the wheel from rotating. The Weight of the sash is not sufficient to overcome the friction exerted by the pressure of the non-rotating wheel on the bearing-strip B in the frame or casing of the window. The sash. may, however, be drawn down by the exercise of a little force which will be added to the weight of the sash. When the sash is pushed up, however, the detents will at once he lifted out of engagement with the teeth. on the wheel, and this will permit the wheel to rotate freely as the sash moves up. It will be noted that this engagement and disengagement of the detents is due to the movement of the plate 3 up or down with respect to-the wheel to the limited extent permitted by the slotted bearings 9. Obviously the teeth 10 and detents 11 do not operate as an ordinary pawl and ratchet; but the position of the detent with respect to the radius of the wheel (see Fig. 6) makes it convenient to give the teeth the form of ratchetteeth, which merely serve as a series of shoulders to be engaged by the detent.

The strip or stile B in the frame or easing may be plainsurfaced-in the case of a housewindow, for example; but for a carwindow, which is subjected to continuous j olting or jarring, it is preferred to make the face of this strip wavy or undulating, as seen in Fig. 5, so that the wheel may get a better hold or grip by engaging a recess of the undulating surface.

Fig. 6 illustrates a construction which is the same in principle as that already described, but differs somewhat in detail from the latter. In this construction the coil springs 4 are substituted by asingle leafspring 4, bearing on the movable plate g at the middle thereof. There are two wheels 8 in this construction mountedv precisely like the wheel in the construction described.

There will be of course a device of the character described. at each side of the sash, and for some sashes there may be more than one at each side. Preferably the upholding device will be set in the sash and the bearingstrip B on the frame or casing or forming a part of the latter; but where the described device is set in the frame, as it may be, the undulating surface over which the wheel or wheels roll, if such a surface be used, will be on the sash, and the device will be reversed, so that the detents will be below the wheel. This reversal or inversion of the device will require no illustration.

Obviously, as seen in Fig. 8, the casing 1 may be box-like and ornamental and be screwed to the face of the sash, in which case the bearing-strip B will of course be placed on frame or casing in proper position for the wheel to roll over it. This strip may be of wood, metal, or other suitable hard material.

sa e

Having thus described my invention, 1 claim- 1. A device for the purpose specified, having a casing to be fixed in position, a movable plate mounted therein, said plate being provided with a rigid detent, a spring behind said plate and disposed between it and the fixed casing, and a friction-wheel mounted in the said plate and provided with journals having slotted bearings so that the wheel may move up and down, said wheel being provided with teeth to be engaged by the detent on the plate when the sash descends, and thus arrest the rotation of the wheel.

2. The combination with a windmv-frame and window-sash, of a device for the purpose specified mounted on said sash, said device comprising a casing secured to the sash, a movable plate mounted in said casing, means for guiding and limiting the movement of said plate, a friction-wheel mounted in said plate, said wheel having journals mounted in slotted hearings in the plate so that the wheel may have a limited movement up and down, and provided also with. a series of teeth concentric with. the axis of the wheel, and said plate being provided with a detent above said wheel and adapted to engage the teeth thereon when the wheel is moved. upward in its bearings, and a spring behind said plate, which tends to keep the periphery of the wheel pressed into yielding contact with the part of the frame adjacent to the edge of the sash.

In witness whereof I have hereunto signed my name, this 18th day of December, 1905, in the presence of two subscribing witnesses.

lVlLLlAM M. DUCKER.

Witnesses HENRY CoNNE'r'r, H. G. Hosn. 

